Add doc for dac2 and miniscale.

docs/en/refs/unit.dac2.ref

@@ -0,0 +1,19 @@
+.. |DAC2Unit| image:: https://static-cdn.m5stack.com/resource/docs/products/unit/Unit-DAC2/img-d3d02dea-e7ad-4543-ae7c-84957de8329e.webp
+    :target: https://docs.m5stack.com/en/unit/Unit-DAC2
+    :height: 200px
+    :width: 200 px
+
+.. |DAC2Hat| image:: https://static-cdn.m5stack.com/resource/docs/products/hat/Hat-DAC2/img-26204d9b-195c-4c62-afbb-5b3232c09381.webp
+    :target: https://docs.m5stack.com/en/hat/Hat-DAC2
+    :height: 200px
+    :width: 200 px
+
+.. |init.svg| image:: https://static-cdn.m5stack.com/mpy_docs/unit/dac2/init.svg
+
+.. |setDACOutputVoltageRange.svg| image:: https://static-cdn.m5stack.com/mpy_docs/unit/dac2/setDACOutputVoltageRange.svg
+
+.. |setVoltage.svg| image:: https://static-cdn.m5stack.com/mpy_docs/unit/dac2/setVoltage.svg
+
+.. |setVoltageBoth.svg| image:: https://static-cdn.m5stack.com/mpy_docs/unit/dac2/setVoltageBoth.svg
+
+.. |example.svg| image:: https://static-cdn.m5stack.com/mpy_docs/unit/dac2/example.svg

docs/en/refs/unit.miniscale.ref

@@ -2,3 +2,31 @@
     :target: https://docs.m5stack.com/en/unit/Unit-Mini%20Scales
     :height: 200px
     :width: 200 px
+
+.. |init.svg| image:: https://static-cdn.m5stack.com/mpy_docs/unit/miniscales/init.svg
+
+.. |calibration.svg| image:: https://static-cdn.m5stack.com/mpy_docs/unit/miniscales/calibration.svg
+
+.. |getAverageFilterLevel.svg| image:: https://static-cdn.m5stack.com/mpy_docs/unit/miniscales/getAverageFilterLevel.svg
+
+.. |getEMAFilterAlpha.svg| image:: https://static-cdn.m5stack.com/mpy_docs/unit/miniscales/getEMAFilterAlpha.svg
+
+.. |getLowPassFilter.svg| image:: https://static-cdn.m5stack.com/mpy_docs/unit/miniscales/getLowPassFilter.svg
+
+.. |get_adc.svg| image:: https://static-cdn.m5stack.com/mpy_docs/unit/miniscales/get_adc.svg
+
+.. |get_button.svg| image:: https://static-cdn.m5stack.com/mpy_docs/unit/miniscales/get_button.svg
+
+.. |get_weight.svg| image:: https://static-cdn.m5stack.com/mpy_docs/unit/miniscales/get_weight.svg
+
+.. |reset.svg| image:: https://static-cdn.m5stack.com/mpy_docs/unit/miniscales/reset.svg
+
+.. |setAverageFilterLevel.svg| image:: https://static-cdn.m5stack.com/mpy_docs/unit/miniscales/setAverageFilterLevel.svg
+
+.. |setEMAFilterAlpha.svg| image:: https://static-cdn.m5stack.com/mpy_docs/unit/miniscales/setEMAFilterAlpha.svg
+
+.. |setLed.svg| image:: https://static-cdn.m5stack.com/mpy_docs/unit/miniscales/setLed.svg
+
+.. |setLowPassFilter.svg| image:: https://static-cdn.m5stack.com/mpy_docs/unit/miniscales/setLowPassFilter.svg
+
+.. |example.svg| image:: https://static-cdn.m5stack.com/mpy_docs/unit/miniscales/example.svg

docs/en/units/dac2.rst

@@ -0,0 +1,94 @@
+DAC2 Unit
+=========
+
+.. include:: ../refs/unit.dac2.ref
+
+The `Dac2` class interfaces with a GP8413 15-bit Digital to Analog Converter (DAC), capable of converting digital signals into two channels of analog voltage output, ranging from 0-5V and 0-10V.
+
+Support the following products:
+
+
+|DAC2Unit|      
+
+|DAC2Hat|    
+
+
+
+Micropython Example::
+
+	import os, sys, io
+	import M5
+	from M5 import *
+	import time
+	from unit import DAC2Unit
+
+	i2c = I2C(0, scl=Pin(1), sda=Pin(2), freq=400000)
+	dac2_0 = DAC2Unit(i2c0, 0x59)
+	dac2_0.setDACOutputVoltageRange(dac2_0.RANGE_10V)
+  	dac2_0.setVoltage(7.5, channel=dac2_0.CHANNEL_BOTH)
+
+
+UIFLOW2 Example:
+
+	|example.svg|
+
+
+.. only:: builder_html
+
+
+class DAC2Unit
+--------------
+
+Constructors
+---------------------------
+
+.. class:: DAC2Unit(i2c0, addr)
+
+	Create an DAC2Unit object.
+
+	- ``I2C0`` is I2C Port.
+	- ``addr`` I2C address of the DAC (default is `0x59`)..
+
+	UIFLOW2:
+
+		|init.svg|
+
+
+Methods
+----------------------
+
+.. method:: MiniScaleUnit.setDACOutputVoltageRange(_range)
+
+
+	Sets the output voltage range of the DAC.
+
+	- ``_range`` The DAC output voltage range, either `DAC2Unit.RANGE_5V` or `DAC2Unit.RANGE_10V`..
+
+	UIFLOW2:
+
+		|setDACOutputVoltageRange.svg|
+
+.. method:: MiniScaleUnit.setVoltage(voltage, channel=Dac2.CHANNEL_BOTH)
+
+
+	Sets the output voltage of the DAC.
+
+	- ``voltage``  Desired output voltage from 0.0 to range maximum (5V or 10V).
+	- ``channel``  The DAC channel to set. Options are `Dac2.CHANNEL_0`, `Dac2.CHANNEL_1`, or `Dac2.CHANNEL_BOTH`.
+
+	UIFLOW2:
+
+		|setVoltage.svg|
+
+
+.. method:: MiniScaleUnit.setVoltageBoth(voltage0, voltage1)
+
+
+	Sets the output voltage for both channels.
+
+	- ``voltage0``  Desired output voltage from 0.0 to range maximum (5V or 10V).
+	- ``voltage1``  Desired output voltage from 0.0 to range maximum (5V or 10V).
+
+	UIFLOW2:
+
+		|setVoltageBoth.svg|

docs/en/units/index.rst

@@ -20,3 +20,4 @@ Unit
     op90.rst
     op180.rst
     miniscale.rst
+    dac2.rst